import requests
from operator import itemgetter
# 17.3 Hacker News API
# Y-Combinator Hacker News：https://news.ycombinator.com/
# 美国知名的孵化器YC做了一个黑客新闻的专栏，聚合了所有crypto圈的黑客攻击事件，阅读以提高防范意识。

# Make an API call, and store the response.
url = 'https://hacker-news.firebaseio.com/v0/topstories.json'
r = requests.get(url)
print(f"Status code: {r.status_code}")

# Process information about each submission.
submission_ids = r.json()
submission_dicts = []

for submission_id in submission_ids[:10]:
    # Make a separate API call for each submission.
    # 返回Hacker News上当前排名靠前的文章ID
    url = f"https://hacker-news.firebaseio.com/v0/item/{submission_id}.json"
    r = requests.get(url)
    print(f'id: {submission_id}\tstatus: {r.status_code}')
    response_dict = r.json()

    # Build a dictionary for each article.
    submission_dict = {
        'title': response_dict['title'],
        'hn_link': f"http://news.ycombinator.com/item?id={submission_id}",
        'comments': response_dict['descendants'],
    }
    submission_dicts.append(submission_dict)

submission_dicts = sorted(submission_dicts, key=itemgetter('comments'), reverse=True)

for submissio_dict in submission_dicts:
    print(f"\nTitle: {submissio_dict['title']}")
    print(f"Discussion link: {submissio_dict['hn_link']}")
    print(f"Comments: {submission_dict['comments']}")
